Electric switch



M. Quin. ELECTRIC SWITCH.

APPLICAUON HLED MAY 261 193].

1,335,106. mama Mar. 30,1920.

ttsrrnn STATES PATENT OFFICE.

MONROE GUETT. OF HARTFORD. CONNECTICUT, ASSIGNOR TO THE HART 8; HEGEMAN MANUFACTURING COMPANY, HARTFORD. CONNECTICUT, A CORPORATION OF CONNECTICUT.

ELECTRIC SWITCH.

Application filed. May 26. 1917.

new and useful improvements in Electric Switches, of which the following is a specitication. v

' throughout the several views.

This invention relates to electricswitches. ()bviously the invention can be incorporated in various types of devices of the class set forth. It is of particular utility, however. when embodied in a suspended snap-switch. As will be clear, however. I am in no sense restricted in this respect.

In the drawings accompanying and forming part of the present specification l have shown in detail one convenient form of emhodimentof theinvention which will be set forth fully in the following description.

Within the limits of my claims succeeding the description I may depart. in a number of respects from this particular disclosure. By the invention I can produce an article in an inexpensive manner. while at thesame' time T can secure an exceedingly quick snap movement.

Referring to said drawings:

Figure 1 is a vertical sectional. view of the switch, the body and certain parts carried thereby being in elevation while the casing is in vertical section.

Fig. 2 is a. vertical sectional view of the body and. parts sustaii'ied thereby.

Fig. 3 is a vertical section on the line 3-3 of Fig. 2. looking in the direction of the arrows.

Fig. 4* is a horizontal section on the line 4-4 of Fig. 2. also looking in the direction of the arrows.

Fig. 5 is a detail of an actuator.

Fig. (3 is a plan view of a roller.

Fig. 7 is a detail view of part of the switching member.

Figs)? is a plan view of a disk. Like; characters refer to like parts I wish to make it'clear that l am in no sense except as demanded by my claims. limited to the incorporation of the structure in any particular type of switch. I have shown the invention. however. embodied in y a suspended snap switch in conjunction with which it admirably o ')erates. The switch involves a. suitable supporting body 2 which 'tively.

Specification of Letters Patent Patented Mar. 3U, 1920.

Serial No. 171.245.

is generally oi insulating materiahor mainly so. 'l hat'shown comprises the superposed segments 3 and l spaced from each other and between which are interposed the metal lic strips 5 and (5 having inturned ends 7 as best shown in Fig. 3 to receive the threaded ortions oi screws H. extendin throu h bores in the respective sections 3 and l: From the outer sides thereof and thr aided into the inturned ends 7 of the strips 5 and (3 respecby a casing such as that denoted in a gene al way byf) andwvhich is connected with the supporting body 2 in any desirable manner as by the screws 10. The casing i) as .shown is of sectional form and in its normally upper member is an insulating hush ing 11 through which the suspending cord or conductors 12 pass as usual. It will be understood that there maybe cases where the switch parts are not suspended andothers wherein the body of whatever nature it inay be is not incased. Set in grooves or rabbets in the section 3 are contacts as 13.

the inner ends oi these contacts being placed under the lower inwardly extending portion 7 of the strips 5 and 6. thus electrically connecting the contacts and strips Sand 6, the bodies of the contacts being slotted to re-. ceive the lower screws 8. this providing a convenient way of holding the contacts in position. Tapped through the bodies of the strips 5 are the screws 14. the shanks of which may receive the, bared lower ends oi the suspending or conducting wires '12. which wires are clamped against said strips 5 and 6 by the heads of said screws 14.. It will be clear that when a switching member hereinafter described electrically bridges the two contacts 13, the circuit will be closed or the switching member will be. in circuit- This supporting body 2 is inchised- The slots 17 as shown are of open form and v the presence of them makes the sides each forked. The slots straddle the pivot 19 ex-v tending from one side wallto the other of the chamber or cavity 20 in the upper side of the body section 2 approximately cen' trally thereof. Surrounding the sides or sections 16 are practically similar disks 21 each having elongated slots 22'to slidingly receive the respective sides 16. In the present instance and as will be hereinafter more particularly pointed out, the lower disk 21 normally abuts against the pivot 19, while the heads 18 jointly present asuita-ble rest or stop for the upper disk 21. Surrounding the complemental sides'is a coiled spring 23 bearing at its ends against thedisks 21.

In connection with a switching member such as that denoted by 15 and already described in detail is a suitable actuator, that denoted in a general way by 24 serving quite satisfactorily. This actuator 24 comprises an intermediate or controlling portion 25 and buttons 26 and 27, ofinsulatingmatcrial molded onto the lugs 28 of the body 25 Said body 25 on its upper side is shown as provided with the projection or-ear 29 disposed in the cavity 30 of the body member 4, opposite side walls of said cavity being abutted by the stop 29 to arrest themovemeat of the actuator 24 and therefore of the switching member 15 when the latt r is in its onand off positions respectively. The body portion 25 is slotted out as at 31 to present a controlling or am face 32 and two stop faces 33 and 34. From the lower terminals of the stop faces 33 and 34 are downwardly-diverging faces 35. As a part of the .switching member 15: is an anti-friction roller 34. While this anti-friction roller 15 eminently desirable, it is conceivable that its a purposes might be otherwise attained within the scope of the invention. Extending laterally from it are the coaxial pivots 38.

This roller is situated between the heads 18 of the strips or plates .16 to which I have already referred as constituting. a part of the switching member, and these heads have open slots 39 into which the coaxial pivots 38 can be dropped. In Fig. 2 the switch is shown in the opencircuited position at which time the antifriction roller 37 will lie in the pocket formed at the junction of the stop face 33 with one end of the controlling face 32, the stop 29 at this time being against the left wall of the cavity 30. It will be assumed that it is desired to move the switching member? to the closed circuited position. In this event the button 26 will be moved toward the right, thus tending to swing the switching member 15 to vertical. positlon and at,the same time causing the movement of the upper disk 21 toward the lower diskand resulting in a compression of the spring 23. When the spring has been compressed to the necessary extent and just before the switching member 15 reaches the perpendicular position, the spring by reaction serves to swing the switching member over the dead center position, causing the anti-friction roller 37 to traverse the face 32, the motion continuing until said roller -motion is completedthe pivots 38 will enter between the resilient upper free and 'inwardly extending ,ends 40 of the vertical or' upright portions 41 of the contacts 13 to close the circuit I I desire to call attention to the fact that the roller 37 is alternately engaged by the actuating-and-stop faces 33 and 34;. It is shown against the face 33 in Figs. 1 and 2, It will be clear that initially the actuator 25 as it is moted toward-the right swings the circuit controlling part .or switching: member 15: correspondingly, thus compressing the spring 23. When the actuator has moved a short distance, it frees the circuit controlling or switching member 15 which is shifted to itsextreme position by the reacting spring, to the left in this case, being prevented by the stop face 33, an opposite movement being permitted by the surface 32. .As the switching member 15. moves toward its circuit closing position the pivots 38 will enter between the two parts 40 to thus close the circuit. On the circuit-opening motion the reverse action occurs. The actuator, therefore, gives to the switch or circuit controlling member 15 merely an initial shifting movement, the motion being completed in each case by the reaction of the spring 23.

\Vhat I claim is:- I

1. A switch comprising a swinging cir-v cuit-controlling member, spring means to swing with the circuit-controlling member, an actuator provided with buttons at its ends and mounted for back and forth move ments in a straight path, the actuator hav- ,ing a concaved cam face rigid therewith and actingon each movement of the actuator, to initiate the swinging movement of the circuit-controlling member and at the same time to condition the spring means for completing the movement of the circuit-control ling member, the cam face when the spring means is thus conditioned on the movement of the actuator, releasing the circuit-'control ling member, and the spring means at such time acting to complete the p'redetermine motion of the circuit-controlling member.

22A switch comprising a swinging cir cuit-controlling member, spring, means; to swing with said circuit-controlling member, an actuator provided with buttonslat its ends and mounted for back and fortli' movements in a straight path, the actuator having a concaved cam face rigid therewith and acting on each movement of the actuator, to initiate the swinging movement of the cir- (aiit-wntrolling member and at the same time to condition the spring means to complete the movement of the circuit-controlling member, the cam face when the spring 3. A switch comprising a swinging circuit-controlling member, coiled springv means surrounding and to swing with said circuit-controlling member, an actuator provided' with buttons at its ends and mounted for back and forth movements in a straight path, the actuator having a concaved cam face rigid therewith and acting on each movement of the actuator, to initiate the swinging movement of the circuit-controlling member and at the same time to condition the spring means to complete the movement of the circuitecontrolling member, the cam face when the spring means is thus conditioned releasing the circuit-controlling member and the spring means act ing to complete the predetermined motion of the circuit-controlling member.

4. A switch comprising a p ivotally mounted swinging circuit-controlling member provided with an anti-friction roller constituting the circuit closing portion of the switch an actuator mounted for reciproc'atory movement. spring means carried by the circuit-controlling member, the actuator having cam means to engage said roller to impart a swinging movement to the circuiteontrolling member and to then release the circuit-controlling member, the actuator during the initial part jot each movement conditioning the spring means to impart a snap movement to the circuit-controlling member when the latter is released. 1

A switch comprising a supporting body. a swinging circuit-controlling member comprising two separate sections arranged side by side, washers surrounding the sections, the body having a pivot and the sections being slotted at their lower ends to receive the pivot, washers surrou'ndin said sections, one of the washers bearing against the pivot, the sections having coinplemental. heads to receive the other washer, a coiled compression spring surrounding the sections and bearing against the washers. an actuator extending through the body andprovided with a curved surface and also provided with stops. the heads of the switching member being slotted, and a roller constituting part of the switching member turnished with outwardly extending pivots set in the last mentioned slots, said actuator on its movements operating to move the circuitcontrolling member toward upright position to thus compress the spring and the spring when compressed acting to impart to the circuit-controlling member on and off movementsrespectively, and wire coi'niecting and contact means carried by the body, the pivots of said roller when the circuit-controlling -member is in the on position engaging said wire connecting and contact members.

(i. A switch comprising a swinging circuitcontrolling member, coiled spring means surrounding and swinging with said circuit-controlling member, the circuit-controlling member having an anti-friction roller, a reciprocatory actuator mounted for back and forth movements in a straight path and having a concaved cam face to engage said anti-friction roller and thus initiate the swinging movement of the circuitcontrolling member and at the same time condition the spring means to complete the move- .ment of the circuit-controlling member, the actuator when said spring means is thus conditioned on the movement of the actuator, releasing the circuit-controlling member, and the spring means acting at such time to complete the movement of the circuit-controlling member.

7 A switch comprising a pivotally mounted circuit-controlling member, a coiled spring surrounding the circuit-controlling member, an actuator provided with buttons at its ends and mounted for back and forth movements in a straight path, the actuator having a concaved cam face rigid therewith and acting on each movement thereof: to initiate the swinging movement of the circuitcontrolling member and at the same time condition the spring means to complete the swinging movement of the circuit-controlling member, the actuator releasing the cirwit-controlling member and the spring means acting at such tlll'i'G to complete the predetermined motion of thecircuit-controlling member.

8. A switch comprising a swinging circuit-controlling member, spring means to swing with said circuit-controlling member, ,an actuator having buttons at its ends and. mounted for back and forth movements in a straight path, the actuator having a concaved cam face rigid therewith and acting on each Tl'lOVGlYlG-Ilt of the actuator to initiate the, swinging movement of the, circuit-controlling member and at the same time to condition the spring means to complete the movement of the cir 'uit-controlling member. the cam face when the spring is thus conditioned on the movement of the actuator, re-

leasing the circuit-controlling member and an anti-friction,roller, an actuator mounted for reciprocatory movements in. a straight path, spring means carried by the circuitcontrolling member, the actuator havlng a concaved cam face to engage said roller to impart a swinging movement. to the circuitcont-rolling member and then release the same, the actuator during the initial part of each movement conditioning the spring means to impart a snap" movement to the circuit-controlling member when the latter is released. A

10. A switch comprising a supporting body, a swinging circuit-controlling member sustained by the body, spring means to,

swing'with the circuit-c0ntro11ing member,

an actuator mounted for back and forth movements in a straight path, andit's ends extending from the body, the. actuator having a concaved cam face rigid therewith'and acting on each movement of the actuator to initiate the swinging movement of the cir- 'cuit-controllin member and at thesame 'time to condition the spring means to commeans is thus conditioned on the movement of the actuator, releasing the circuiff-controlling member and. the spring means at such time .actingto complete the predetee mined motion of the circuit-controlling member. v

I I Intesti-mony whereof I afiix my signature in the presenceof two Witnesses.

v a MONROE GUETT.

Witnesses: 1 v

HENRY'O. WUELFING, A. BENNETT, 

